package com.crealth.utils;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import org.apache.log4j.Logger;


public class HttpRequest {
	private static Logger errorLog = Logger.getLogger("error_log");
	
    public static String sendGet(String url, String param) {
        String result = "";
        BufferedReader in = null;
        try {
            String urlNameString = url + "?" + param;
            URL realUrl = new URL(urlNameString);

            URLConnection connection = realUrl.openConnection();

            connection.setRequestProperty("accept", "*/*");
            connection.setRequestProperty("connection", "Keep-Alive");
            connection.setRequestProperty("user-agent", 
                "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");

            connection.connect();

            in = new BufferedReader(new InputStreamReader(
                connection.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {                
                result = result + line;
            }
        } catch (Exception e) {
        	errorLog.error("发送GET请求出现异常！", e);
            try {
                if (in != null) {
                    in.close();
                }
            }
            catch (Exception e2) {
            	errorLog.error("", e2);
            }
        }
        finally {
            try {
                if (in != null) {
                    in.close();
                }
            }
            catch (Exception e2) {
                e2.printStackTrace();
            }
        }
        return result;
    }

    public static String sendPost(String url, String param) {
        PrintWriter out = null;
        BufferedReader in = null;
        String result = "";
        try {
            URL realUrl = new URL(url);
            URLConnection conn = realUrl.openConnection();
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("Content-Type", "text/html;charset=UTF-8");
            conn.setRequestProperty("user-agent", 
                "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");

            conn.setDoOutput(true);
            conn.setDoInput(true);
            out = new PrintWriter(conn.getOutputStream());
            out.print(param);
            out.flush();
            in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {
                result = result + line;
            }
        } catch (Exception e) {
            System.out.println("发送 POST 请求出现异常！" + e);
            e.printStackTrace();
            try {
                if (out != null) {
                	out.close();
                }
                if (in != null) {
                	in.close();
                }
            }
            catch (IOException ex) {
                ex.printStackTrace();
            }
        }
        finally {
            try
            {
                if (out != null) {
                    out.close();
                }
                if (in != null)
                    in.close();
            }
            catch (IOException ex)
            {
                ex.printStackTrace();
            }
        }
        return result;
    }
}
